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Merge pull request #1981 from denis0x0D/MCOL-4685_fix_rebase

MCOL-4685 Fix bug after rebase and add comments.
This commit is contained in:
Roman Nozdrin
2021-06-08 20:45:05 +03:00
committed by GitHub

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@ -590,10 +590,15 @@ int ColumnBufferCompressed::saveCompressionHeaders( )
fColInfo->column.compressionType);
fCompressor->setBlockCount(hdrBuf,
(fColInfo->getFileSize() / BYTE_PER_BLOCK) );
// If lbid written in the header is not 0 - we are running for the next extent for column
// segment file.
if (lbid)
fCompressor->setLBIDByIndex(hdrBuf, fColInfo->getLastUpdatedLBID(), 1);
// If lbid written in the header is not 0 and not equal to `lastupdatedlbid` - we are running
// for the next extent for column segment file.
const auto lastUpdatedLbid = fColInfo->getLastUpdatedLBID();
if (lbid && lastUpdatedLbid != lbid)
{
// Write back lbid, after header initialization.
fCompressor->setLBIDByIndex(hdrBuf, lbid, 0);
fCompressor->setLBIDByIndex(hdrBuf, lastUpdatedLbid, 1);
}
else
fCompressor->setLBIDByIndex(hdrBuf, fColInfo->getLastUpdatedLBID(), 0);